Hitherto treated as conspecific with F. franklinii, and these two previously awarded genus Canachites. F. franklinii differs in all-dark vs broad orange-buff tips of rectrices (3); bold white (vs all-dark) tips of elongate uppertail-coverts (3); thin broken vs strong continuous white line across breast (1); broader rectrices (effect size based on published data#R 1.67; score 1); possession of wing-clap territorial display vs none#R (3); moreover, long zone of hybridization occurs at boundary, where two taxa inhabit different habitat (franklinii in montane conifers, canadensis in taiga#R) (2). Race osgoodi often included in nominate, and torridus in canace#R or nominate#R. Five subspecies recognized.
Introduced (canadensis) to Newfoundland and Anticosti I.
Food and feeding
Status and conservation
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